Been playing with an idea for implementing a spacehulk'ish game for the Android/iPhone market. Spacehulk is an old boardgame that has been turned into a computer game a few times I think. I made a small demo of the idea and would love any feedback! I am not that happy about it right now and am thinking about what to change. So any feedback is welcome!

Nice idea. I played the board game when I was younger, as well as the 1993 computer game. Biggest thing I'd add would be atmousphere - flickering lights, and definitely line-of-sight for showing aliens (maybe replace unseen aliens by radar blips). Next up would be customising your marines, choosing weapons etc.

Won't there be some serious copyright problems with this though? As far as I know, Space Hulk turned into Warhammer 40k, which has IP that is probably going to be protected pretty actively.

They'll have copyright on the artwork. With fair use you could probably use a small sample of in a slide show about their product, or in educational software teaching about aliens (fair use), but not in a game.

They'll have trademark on "Warhammer" and "Space Hulk", and they can kick your arse if you even have a dream about considering to start thinking of whispering them to yourself locked in an airtight chamber. With no money involved. Not to mention that they're obliged to take you to court or they could lose their trademark after a few years.

I'm not a lawyer, so this might not be entirely correct, but it should be on the right track.

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